diff --git a/Makefile b/Makefile
index ba5a765..282283a 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ PY?=python3
 PELICAN?=pelican
 PELICANOPTS=
 
-YEARSUBFOLDER=enseignements/2019-2020/
+YEARSUBFOLDER=enseignements/2017-2018/
 
 BASEDIR=$(CURDIR)
 INPUTDIR=$(BASEDIR)/content
diff --git a/pelicanconf.py b/pelicanconf.py
index 03de42d..208b433 100644
--- a/pelicanconf.py
+++ b/pelicanconf.py
@@ -9,7 +9,7 @@ from globalconf import *
 AUTHOR = 'Benjamin Bertrand'
 SITENAME = 'OpyTex'
 SITETITLE = 'OpyTex'
-SITESUBTITLE = "2019-2020"
+SITESUBTITLE = "2017-2018"
 SITEURL = ''
 
 CC_LICENSE_COMMERCIAL = True